Behavior of surfactant mixtures at solid-liquid interfaces was investigated using anionic-nonionic and catjonic-nonionic surfactants of different structures. The results show that adsorption of nonionic surfactants on alumina was enhanced significantly by the coadsorption of ionic surfactants. The adsorption beha vior of these binary surfactant mixtures was dependent upon the ratio of the two s...

that the administration of surfactants improves pulmonary compliance but, at the same time, it is a great alveolar “recruiter,” and that positive end expiratory pressure (PEEP) contributes to stabilizing the functional residual capacity by maintaining a constant lung volume. We have also learnt that, with traditional ventilation modes, the lungs stabilize after reaching an optimal lung volume, ...

Objective: Influenza A virus infections are still a major health problem and the choices available for the control and treatment of the disease are limited. This research evaluated in vitro and in vivo antiviral effects of Peganum harmala L. seeds (PHS) extract against influenza A virus. Materials and Methods: In this research, in vitro anti-influenza A virus activity of the extract was assesse...

Surfactants have wide use all over world. This study summarizes the characteristics and classification of surfactants. Surfactants have wide application in commodity and industry. A large number of surfactant containing wastewater are discharged into the environment, resulting in harming aquatic life, polluting the water and endangering human health. Therefore, it is important to monitor and co...

This thesis consists of an experimental investigation of the effect of surfactants on the boiling curve of water. Via adsorbtion to the boiling surface, surfactants alter the surface energy interaction during bubble formation at nucleation sites. The surfactants initially enhance the heat transfer coefficient at the onset of nucleate boiling due to higher nucleation density and higher bubble de...

pulmonary fibrosis is a progressive disease of the lungs, which leads to death in human. it has been suggested that transforming growth factor beta 1 (tgf-β1) together with oxidative stress play a central role in the pathogenesis of the ailment. the objective of this study was to evaluate the possible curative effects of black radish, raphanus sativus l . var niger (rsn) on bleomycine (blm) -in...

objective: plantago major (p. major) is one of the medicinal crops in the world which has therapeutic properties for treatment of respiratory and gastrointestinal diseases. theophylline is commonly used for the treatment of respiratory diseases. in this study, we investigated the protective effects of hydro-alcoholic extract of p. majoron lung in asthmatic male rats. materials and methods: 32 m...

Surfactants are an essential ingredient for cosmetic, toiletries and personal care products for enhancing their performance. Dimeric surfactants demonstrate superiority compared to conventional surfactants in all areas of application. Dimeric surfactants are extremely promising for utilization in various cosmetic formulations viz. shampoo, lotions, creams, conditioners etc. These surfactants po...